Also found in: Thesaurus, Idioms.
adj. grub·bi·er, grub·bi·est
1. Dirty; grimy: grubby old work clothes. See Synonyms at dirty.
2. Infested with grubs.
3. Contemptible; despicable: has a grubby way of treating others.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.